# Matching API

API endpoints for resource matching and optimization.

## Match Query Request

```json
{
  "resource": {
    "type": "waste_heat",
    "direction": "supply",
    "site_id": "uuid-optional",
    "temperature_range": {
      "min_celsius": 60.0,
      "max_celsius": 120.0
    },
    "quantity_range": {
      "min_amount": 100.0,
      "max_amount": 1000.0,
      "unit": "kW"
    },
    "quality_requirements": {
      "min_purity_pct": 95.0,
      "max_contamination_mg_kg": 100.0,
      "required_certifications": ["ISO9001"],
      "ph_range": {
        "min": 6.5,
        "max": 8.5
      }
    }
  },
  "constraints": {
    "max_distance_km": 50.0,
    "min_economic_value": 1000.0,
    "precision_preference": ["exact", "measured", "estimated"],
    "max_results": 20,
    "organization_filters": {
      "sector": "Manufacturing",
      "min_trust_score": 0.7,
      "preferred_partners": ["org-uuid-1", "org-uuid-2"]
    },
    "temporal_requirements": {
      "availability_pattern": "continuous",
      "min_overlap_hours_week": 40
    }
  },
  "scoring_weights": {
    "distance_weight": 0.3,
    "economic_weight": 0.4,
    "quality_weight": 0.2,
    "trust_weight": 0.1
  }
}
```

## Resource Types

- `waste_heat`: Thermal waste heat
- `excess_electricity`: Surplus electrical power
- `industrial_waste`: Manufacturing byproducts
- `water_waste`: Wastewater or process water
- `byproducts`: Production byproducts
- `cooling_water`: Excess cooling capacity
- `compressed_air`: Surplus compressed air
- `logistics`: Transportation capacity
- `materials`: Recyclable materials
- `service`: Service offerings

## Resource Directions

- `supply`: Resource available for provision
- `demand`: Resource needed for consumption

## Match Response

```json
{
  "data": [
    {
      "id": "match-uuid",
      "source_organization": {
        "id": "org-uuid",
        "name": "Supplier Company",
        "sector": "Manufacturing"
      },
      "target_organization": {
        "id": "org-uuid",
        "name": "Consumer Company",
        "sector": "Manufacturing"
      },
      "source_resource": {
        "id": "resource-uuid",
        "type": "waste_heat",
        "direction": "supply",
        "quantity": 500,
        "unit": "kW",
        "quality": {
          "temperature_celsius": 80,
          "purity_pct": 98
        }
      },
      "target_resource": {
        "id": "resource-uuid",
        "type": "waste_heat",
        "direction": "demand",
        "quantity": 400,
        "unit": "kW"
      },
      "compatibility_score": 0.92,
      "temporal_overlap_score": 0.95,
      "quality_score": 0.88,
      "economic_value": 25000,
      "distance_km": 15.5,
      "transportation_estimate": {
        "cost_per_year": 5000,
        "method": "piping",
        "feasibility_score": 0.95
      },
      "risk_assessment": {
        "technical_risk": 0.1,
        "regulatory_risk": 0.05,
        "market_risk": 0.2,
        "counterparty_risk": 0.15
      },
      "economic_impact": {
        "annual_savings": 30000,
        "npv": 150000,
        "irr": 0.25,
        "payback_years": 2.1,
        "co2_avoided_tonnes": 150,
        "capex_required": 25000,
        "opex_per_year": 3000
      },
      "status": "suggested",
      "priority": 8,
      "suggested_actions": [
        {
          "type": "contact",
          "description": "Initiate contact with supplier",
          "priority": "high"
        },
        {
          "type": "feasibility_study",
          "description": "Conduct technical feasibility assessment",
          "estimated_cost": 5000
        }
      ],
      "created_at": "2025-01-15T10:00:00Z",
      "expires_at": "2025-02-15T10:00:00Z"
    }
  ],
  "metadata": {
    "total_matches": 45,
    "search_criteria": {},
    "processing_time_ms": 250,
    "algorithm_version": "2.1.0"
  }
}
```

## Match Status Values

- `suggested`: Initial algorithmic match, not reviewed
- `negotiating`: Organizations in active discussion
- `reserved`: Match reserved for a period
- `contracted`: Formal agreement reached
- `live`: Active resource exchange
- `failed`: Match attempt unsuccessful
- `cancelled`: Match cancelled by participants

## API Endpoints

### Find Matches

```http
POST /api/v1/matching/find
```

**Request Body:** MatchQueryRequest (see schema above)

**Response:** MatchResponse with array of potential matches

### Get Top Matches

```http
GET /api/v1/matching/top
```

**Query Parameters:**
- `limit` (int, optional): Maximum results (default: 10)
- `resource_type` (string, optional): Filter by resource type
- `min_score` (float, optional): Minimum compatibility score (0.0-1.0)

**Response:** Array of highest-scoring matches

### Create Match from Query

```http
POST /api/v1/matching/create-from-query
```

**Request Body:**
```json
{
  "query": MatchQueryRequest,
  "match_override": {
    "priority": 9,
    "notes": "High-priority strategic match"
  }
}
```

**Response:** Created match object

### Get Match Details

```http
GET /api/v1/matching/{matchId}
```

**Response:** Complete match object with negotiation history

### Update Match Status

```http
PUT /api/v1/matching/{matchId}/status
```

**Request Body:**
```json
{
  "status": "negotiating",
  "notes": "Initial contact established",
  "participants": ["org-uuid-1", "org-uuid-2"]
}
```

**Response:** Updated match object

## Negotiation History

Each match maintains a complete negotiation history:

```json
{
  "id": "negotiation-uuid",
  "match_id": "match-uuid",
  "timestamp": "2025-01-15T14:30:00Z",
  "actor_id": "user-uuid",
  "action": "proposed",
  "notes": "Initial proposal submitted",
  "old_value": null,
  "new_value": {
    "status": "negotiating",
    "proposed_terms": {
      "price_per_unit": 0.15,
      "contract_duration_months": 24
    }
  },
  "attachments": [
    "https://api.turash.com/static/attachments/proposal_v1.pdf"
  ],
  "metadata": {
    "confidence_level": 0.85,
    "automated_action": false
  }
}
```

## Contract Details

When matches progress to formal agreements:

```json
{
  "contract_id": "CTR-2025-001",
  "signed_at": "2025-01-20T09:00:00Z",
  "effective_from": "2025-02-01T00:00:00Z",
  "termination_date": "2027-01-31T23:59:59Z",
  "value_per_year": 25000,
  "terms_url": "https://api.turash.com/contracts/CTR-2025-001.pdf",
  "payment_terms": "Monthly in advance",
  "termination_terms": "90 days notice",
  "signatures": [
    {
      "organization_id": "org-uuid-1",
      "signer_name": "John Doe",
      "signer_title": "Operations Director",
      "signed_at": "2025-01-20T09:00:00Z"
    }
  ]
}
```

## Scoring Algorithm

Matches are scored using a multi-factor algorithm:

### Compatibility Score (0.0-1.0)
- **Distance Factor**: Inverse relationship with distance
- **Economic Value**: Direct relationship with potential savings
- **Quality Match**: Compatibility of resource specifications
- **Trust Score**: Organization reliability rating
- **Temporal Overlap**: Availability alignment

### Weights Configuration
```json
{
  "distance_weight": 0.25,
  "economic_weight": 0.35,
  "quality_weight": 0.25,
  "trust_weight": 0.15
}
```

## Transportation Estimation

Automatic calculation of transportation costs and feasibility:

### Methods
- `piping`: For fluids (water, steam, gases)
- `truck`: Road transportation
- `tanker`: Bulk liquid transport
- `conveyor`: Solid material transport
- `rail`: Rail transportation

### Feasibility Scoring
- **0.0-0.3**: Not feasible
- **0.3-0.7**: Requires engineering study
- **0.7-1.0**: Readily implementable

## Risk Assessment

Comprehensive risk evaluation:

- **Technical Risk**: Equipment compatibility, maintenance requirements
- **Regulatory Risk**: Permits, compliance, environmental regulations
- **Market Risk**: Price volatility, demand fluctuations
- **Counterparty Risk**: Partner reliability, contract compliance

## Error Handling

### Invalid Query
```json
{
  "error": "Invalid match query",
  "details": {
    "resource.type": "Resource type is required",
    "constraints.max_distance_km": "Maximum distance cannot exceed 500km"
  }
}
```

### No Matches Found
```json
{
  "error": "No matches found",
  "details": {
    "suggestions": [
      "Try increasing maximum distance",
      "Consider alternative resource types",
      "Review quality requirements"
    ]
  }
}
```

### Match Not Found
```json
{
  "error": "Match not found"
}
```